Fix host_socket not set for extra streams on client side (#3373) #2971

Job	Run time
gcc-unittest-with-bazel	29m 43s
clang-unittest-with-bazel	25m 44s
clang-compile-with-bazel-all-options	14m 23s
compile-with-make	16m 29s
compile-with-cmake	18m 31s
gcc-compile-with-bazel-all-options	10m 44s
clang-unittest	21m 45s
gcc-compile-with-make-protobuf	18m 30s
clang-compile-with-make-protobuf	19m 0s
clang-unittest-asan	25m 6s
clang-unittest-bazel-with-babylon-and-new-pb	40m 37s
	4h 0m 32s

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